j4j and gravel are soon to be anounced as 'deprecated'. Using default richfaces and maybe some seam extensions will become the default. So I suggest against learning j4j and gravel.
which components of richfaces can instead of gd:sort,i try to jbpm-console with richfaces now ,but i have trouble about it
help me ,thanks a lot!
gd sort in combination with richfaces could be used (if they work together), but how to use them is up to you. Gravel itself is not deprecated or something, it is just that the jBPM folks are not going to use it anymore.
Most likely not the answer you were looking for, but for the moment the best I can give you